Update library/core/src/primitive_docs.rs

Co-authored-by: Jubilee <46493976+workingjubilee@users.noreply.github.com>

Author: ultrabear

library/core/src/primitive_docs.rs

@@ -1084,6 +1084,7 @@ impl<T> (T,) {}
 ///
 /// Note that most major platforms will provide `f16` math support by converting to and from
 /// an `f32`, which is usually fairly performant but will not be as fast as using `f32` directly.
+
 /// *[See also the `std::f16::consts` module](crate::f16::consts).*
 ///
 /// [wikipedia]: https://en.wikipedia.org/wiki/Half-precision_floating-point_format